# Uint32\_t

**URL:** <https://www.ruby-forum.com/t/uint32-t/131765>\
**Category:** Development\
**Created:** [March 13, 2008, 2:50am UTC](https://www.ruby-forum.com/t/uint32-t/131765 "2008-03-13T02:50:52Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![KIMURA\_Koichi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/ce7236/32.png) [@KIMURA\_Koichi](https://www.ruby-forum.com/u/KIMURA_Koichi)\
**Post date:** [March 13, 2008, 2:50am UTC](https://www.ruby-forum.com/t/uint32-t/131765/1 "2008-03-13T02:50:52Z")

</div>

e$BLZB\<$G$9!#e(B

e$BNc$K$h$C$FJs9p$@$1$G$9!#e(B

01:53 Tuesday ruby  
Commit by matz :: r15743 /trunk/ (ChangeLog string.c):

```
* string.c (hash): replaced by MurmurHash described in 

```

[http://murmurhash.googlepages.com/](http://murmurhash.googlepages.com/).

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e$B$?$V$se(B ruby-dev 34026  
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---

<div class="post-metadata">

**Author:** ![KIMURA\_Koichi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/ce7236/32.png) [@KIMURA\_Koichi](https://www.ruby-forum.com/u/KIMURA_Koichi)\
**Post date:** [March 13, 2008, 9:31am UTC](https://www.ruby-forum.com/t/uint32-t/131765/2 "2008-03-13T09:31:58Z")

</div>

e$B@.@%$G$9!#e(B

KIMURA Koichi wrote:

> e$B%S%k%I$G$-$J$/$J$C$F$$$^$9!#e(B  
> e$B$3$N;~E@$G$Oe(B uint32\_t e$B$G$J$/e(B unsigned int e$B$J$N$G\<B:]$Ke(B  
> uint32\_t e$B$K$J$k$N$Oe(B r15760 e$B$G$9$M!#e(B  
> e$B$J$K$O$H$b$"$le(B r15762  
> e$B$G%S%k%I$ODL$k$h$&$K$J$C$F$$$k$H;W$$$^$9!#e(B

e$B$?$@!"e(BMurmurHash e$B$N0U?^$7$F$$$k5!G=$OH/4x$5$l$F$$$J$/$F!“e(B  
h e$BEy$be(B unsigned int e$B$G$J$/e(B int32\_t  
e$B$K$9$kI,MW$,$”$k$H;W$$$^$9!#e(B  
e$B$^$?!"e(Bm e$B$N=i4|CM$,:G?7HG$G$Oe(B 0x7fd652ad e$B$+$ie(B  
0xc6a4a793 e$B$KJQ99$5$l$F$$$k$N$G!"e(B  
e$B$3$l$bDI=\>$7$?J}$,$$$$$G$7$g$&!#e(B  
e$B$5$i$K!"e(Balign e$B$de(B pack e$B$Oe(B len  
e$B$H1i;;$,9T$o$l$k$N$G!"7?$r$=$m$($?J}$,$$$$$+$b$7$l$^$;$s!#e(B

— string.c (revision 15762)  
+++ string.c (working copy)  
@@ -1697,20 +1697,21 @@ rb\_str\_concat(VALUE str1, VALUE str2)  
#endif

/\* MurmurHash described in [http://murmurhash.googlepages.com/](http://murmurhash.googlepages.com/) \*/  
-unsigned int  
-hash(const unsigned char \* data, int len, unsigned int h)  
+uint32\_t  
+hash(const unsigned char \* data, long len, uint32\_t h)  
{

- const unsigned int m = 0x7fd652ad;

- const unsigned int m = 0xc6a4a793;  
const int r = 16;

- 

```
  int align = (VALUE)data & 3;

```

- 

```
  long align = (VALUE)data & 3;
  if (align) {
      uint32_t t = 0, d = 0;

```

- 

```
      int sl, sr, pack;

```

- 

```
      uint32_t sl, sr;

```

- 

```
      long pack;

      switch (align) {

```

#ifdef WORDS\_BIGENDIAN

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---

<div class="post-metadata">

**Author:** ![KIMURA\_Koichi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/ce7236/32.png) [@KIMURA\_Koichi](https://www.ruby-forum.com/u/KIMURA_Koichi)\
**Post date:** [March 13, 2008, 12:02pm UTC](https://www.ruby-forum.com/t/uint32-t/131765/3 "2008-03-13T12:02:01Z")

</div>

e$B$3$s$K$A$O!"$J$+$`$ie(B(e$B$&e(B)e$B$G$9!#e(B

In message “[ruby-dev:34032] Re: uint32\_t”  
on Mar.13,2008 17:30:41, [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:  
| e$B$3$N;~E@$G$Oe(B uint32\_t e$B$G$J$/e(B unsigned int e$B$J$N$G\<B:]$Ke(B uint32\_t e$B$K$J$k$N$Oe(B r15760 e$B$G$9$M!#e(B  
| e$B$J$K$O$H$b$"$le(B r15762 e$B$G%S%k%I$ODL$k$h$&$K$J$C$F$$$k$H;W$$$^$9!#e(B

ext/digest/defs.he$B$Ge(Buint32\_te$B$re(Btypedefe$B$7$h$&$H$7$F$$$k$;$$$G!"e(B  
inttypes.he$B$,$J$$4D6-$G$O%S%k%I$,DL$i$J$$$h$&$K$J$C$F$^$9$,e(B 🙂

e$B$3$l$I$&$7$^$7$g$&$+$M!#e(B  
uint8\_te$B$He(Buint64\_t(e$B2DG=$J$ie(B)e$B$be(Brubye$B$GMQ0U$9$k$h$&$K$7$F$3$NJU$^e(B  
e$B$k$4$H\>C$9$N$,$$$$$s$G$9$+$M!#e(B

e$B$=$l$G$O!#e(B

---

<div class="post-metadata">

**Author:** ![KIMURA\_Koichi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/ce7236/32.png) [@KIMURA\_Koichi](https://www.ruby-forum.com/u/KIMURA_Koichi)\
**Post date:** [March 14, 2008, 2:19am UTC](https://www.ruby-forum.com/t/uint32-t/131765/4 "2008-03-14T02:19:22Z")

</div>

成瀬です。

U.Nakamura wrote:

> るごと消すのがいいんですかね。  
> とりあえずこんな感じでどうでしょう。

---

<div class="post-metadata">

**Author:** ![KIMURA\_Koichi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/ce7236/32.png) [@KIMURA\_Koichi](https://www.ruby-forum.com/u/KIMURA_Koichi)\
**Post date:** [March 14, 2008, 2:29am UTC](https://www.ruby-forum.com/t/uint32-t/131765/5 "2008-03-14T02:29:54Z")

</div>

e$B$3$s$K$A$O!"$J$+$`$ie(B(e$B$&e(B)e$B$G$9!#e(B

In message “[ruby-dev:34040] Re: uint32\_t”  
on Mar.14,2008 10:15:29, [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:  
| \> ext/digest/defs.he$B$Ge(Buint32\_te$B$re(Btypedefe$B$7$h$&$H$7$F$$$k$;$$$G!“e(B  
| \> inttypes.he$B$,$J$$4D6-$G$O%S%k%I$,DL$i$J$$$h$&$K$J$C$F$^$9$,e(B 🙂  
| \>  
| \> e$B$3$l$I$&$7$^$7$g$&$+$M!#e(B  
| \> uint8\_te$B$He(Buint64\_t(e$B2DG=$J$ie(B)e$B$be(Brubye$B$GMQ0U$9$k$h$&$K$7$F$3$NJU$^e(B  
| \> e$B$k$4$H\>C$9$N$,$$$$$s$G$9$+$M!#e(B  
|  
| e$B$H$j$”$($:$3$s$J46$8$G$I$&$G$7$g$&!#e(B

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e$B$H$$$&$o$1$G!"F~$l$F$[$7$$$G$9!#e(B

e$B$=$l$G$O!#e(B

---

<div class="post-metadata">

**Author:** ![KIMURA\_Koichi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/ce7236/32.png) [@KIMURA\_Koichi](https://www.ruby-forum.com/u/KIMURA_Koichi)\
**Post date:** [March 14, 2008, 3:03am UTC](https://www.ruby-forum.com/t/uint32-t/131765/6 "2008-03-14T03:03:57Z")

</div>

e$B@.@%$G$9!#e(B

U.Nakamura wrote:

> |  
> | e$B$H$j$"$($:$3$s$J46$8$G$I$&$G$7$g$&!#e(B
> 
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---

<div class="post-metadata">

**Author:** ![KIMURA\_Koichi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/ce7236/32.png) [@KIMURA\_Koichi](https://www.ruby-forum.com/u/KIMURA_Koichi)\
**Post date:** [March 14, 2008, 3:37am UTC](https://www.ruby-forum.com/t/uint32-t/131765/7 "2008-03-14T03:37:58Z")

</div>

e$B$3$s$K$A$O!"$J$+$`$ie(B(e$B$&e(B)e$B$G$9!#e(B

In message “[ruby-dev:34043] Re: uint32\_t”  
on Mar.14,2008 11:01:40, [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:  
| \> Windowse$BB&$NFbMF$KB?\>/$NLdBj$,$J$/$b$J$$$G$9$,!"$=$NJU$OF~$C$?e(B  
| \> e$B$iD\>$9$N$G$$$$$3$H$K$7$^$9!#e(B  
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